Type-writing machine.



` R. H. STROTHBR. TYPE WRITING MACHINE.

APPLGATION FILED AUG 11, 19113.

771 Z Jv/Wmk,

HIEATTURNEY R. H. STROTHBR.

TYPE WRITING MACHINE.

APPLICATION FILED AU ..11.1913.

PatenteaN0v.3,1914;

2 SHEETS-*SHEET 2.

l N V E N T [l E XML dwf/my HEATTDRNEY li t? J ii. the

Qca

mounted on tlie .rear rcler to guicle tile e stamped out ont melies oonteee e tl'ie plete .e lever @itl lever, 1.' -liee y is formed ei fi oy :i yoke piece 357 eeicl branches being pi* o screw Afiriotlier e lever scissors j trial eeifl lever is forked. to :torio en operi slot 38 Wliieli emtlie etucl 3i oie tlie riolioii Vibrator. The lever 36 is connected foy menne of e link with am erm. Al0 project rearward from tlie rook slie'tt i6. ft'lie eetioii of the two levers :mtl 3G is controlled by means oit two stops ing part oit e slicle i3 which is moui'itol by memes eerews lll on the reel.' tace of the sliift liar i', seid @Crewe et passing through horizontal slots in tlie er fil-3. oar one eetl line it long vertieel elet t@ in i. e pin -l projects from e erm t8? which erm. riitlly mounted. the rear enel ol? e rook shaft 50 hey-ing e milled lieml 5l oe. tlie troiit enel tlieieoit eiiil in position 'to be remlily manipulated. 'Allie r eli sliuilt :30 ie piyotecl in any si' ,lor eli'eiiiple in n bracket "projeotiriq .rv M091 the :trout poet Si, fmfl another bracket 53 iiiountetlL on tlie tjyf'pe ber li.. W construction le smell that 'when tte heed is turiiecl too slide or eer moved the right or lett.

"niet bai-r is yielclin ly' held. in any one tions means of :i (le et roller 54. iimiiecl on the tr erul ot e spring 55 seourei f' i mieter sie of tlie slii'ft ogg; tliree iioteliee y or tlie bei' 43. lie stops preferably mail@ :itljoetelile iii up and clown clireotio@A :mtl to this eotl the stops ere Shown :is meile ot seperate we ee eeouretl .to 'the 'bei' li by ineens or sore. s GO pessime; tliroi elongatefl slots @l in said Stops mid. i .ienfle int the lier The Stops tlierrieelves ooiiA s.' t esieli oli e piece ot e. t metal bei et iigflit :ingles7 the horizon' i. @mit ot the stop lieiii the part that is eetecl on by the .mee-lizmism. e `@fonemi principle the mechanism tliiie ier fleeeribed identical with that set iliortli in :my prior patent "dove referred to, lt moli kei; Stroke cl V `mite extent oit and mounted on or ormeeicl storie out of operation "the ribbon. ie not reisecl to printing positioe.

The opper enel et the limit 39 riorrfelly Stands either exactly in the seme 1ertioel plane the pivot 38 or meer enough eo Jtor practical. purposes; and in the present iosteiiee it Stef-lds about oo-exizilly with Seidl pivot. This is in orcler that when tlie sliitt ieil 7 is shifted up and clown the iiiilz 39 does not here any etreot on the levers 86 to which it ie Connected, :is the levers 36 and ere both liberty to more up mi down et their tree ends by 'turning about the pivot f3 in one instance eiicl by turning about the link 39 eeeiiter iii the other iristelieea vif'itli the result that tile iiieelieriism nets substantially tlie same iii. tlle upper miel lower cese positions. lillieii tile slide 43 is so adjusted. that one of the stops il-4:2 is in the path oi" the lever 32 miel when e key is clei'ireesecl, the rocking of tlie universel bnr pulls Clown on the liolr 39, which lies the effect of moving; downward. tlie pivot 37, which pulls clown en. the lever 32 until the tree emi et said lever' is arrested by one of the stops. This lever tlien becomes :fixed iii position md the pivot 3? becomes e. fixed pivot about which the lever 36 eats :is .lever of the first order? roo-ving the Vibrator up until tlie heeel ot the stooll 3l ie errestecl loy the Healer side of the stop 4l or 4t2? the cese may loe. The lirilr 39 'has enouigli motion to lering the tree encl of the lever S521 iiito enwzigement 'with the upper surreee of one ot' the stops anal the stucl 3l into 'with the under surface of.

be" ii the iiormel positions ot 'tl/1e lever 32 eno ot the stucl 3l. The ribbon will there- 'ore oe thrown to its full height it the Stop A12 is' in operative position and will lie thrown. to e lese height if the stop 4:1 is in operative position. The stop 4:2 is in operetiye position 'when the detenta 54 is in e11- gegeiiieiit imitli `noteli 577 the stop el is iii oj ieretiVe pesition when seid fleteiit engages the notch. 58 enclboth of seid stops ere out ot range et the coperetiiig; parte and are out of operation when tlie detent is in engagement with the notch 59; and; it is iii this lest position that the parts are sliewii iii the etree/ings. ln this position of the verts. 'when e key is operate@ the lever 82 cloee 4not meet with any obstruction et all; troll the entire stroke ot the key is expended in piillirig down Seial lever, es shown iii 2 Without moving the Vibrator up 'wird all. lt 'is the mein purpose ot the present improveirieiots not only to eveiol root/fi' w the vibrator upwerfl et 'this tljie 'but actually to move it (lowiiwercl. To ie lever is prolonged loeyoiicl 1) emi in V present instance tll e i loroloiwiig ie low iet lll@

lith

"snre that the. stud 3l simil ride np on the the two branches between which the slot 38 is situated. Said lower branch is formed or roviderl with aniextonsion (i2 of substantial ength, lwhichfcnitension7 when 'the parts are in the position ehmvn 'in the drawings, preferably rests on .a vfixed stop here shown es consisting of 'n pin 63 projecting; rearward from the type bnr segment 11. The oiiect of thisieonstrnetion is that the lever 36, including its extension G2, nots when doing stencil Work, 'not as a lever of the first or der, but as niover of theseconil order beving the 'pin 63 for a ulerum, so that the stucl`31, ond Iwith it the ribbon vibrator, are moved `cimvnwerfi 'instead o'i' upward when e key is `depressed,time leaving :imple room for the type 6ft above 'the top of the ribbon, as indicated in 'lig 2.

lin order to conse 'the ribbon vrneclninisin, inciudingthe `Vibrator und the levers 32 ond 3G, to inove up and down ordinarily with the shiitin; of the pinten, n 'shelf or bracket (35 is inountetlnsiiy rivets (loon thc i'ront fisico of the stop bar 45? in socio position that when either of the stops iii, fi-J is in operative position this shell? lies just'infnezith the stud il sind supports Said stud. rlhc resnlt that when the rnii is shifted npwnrd sind stud, when the vibrator und the levers 3&2 and. il@ are all Inored upwn rd `with the pinten and to the snnie extent, ns :rre ofiso the stops `v il und i2. 'iho ribbon is thus moved tothe sinne position with reintion to the platen 'whether vsaid platen is in upper or lower ease position. In order to in shell' h5 when 'the bar is oloveiil .l'roin the position shown in the il,rnwinpgs to bring one' of the stops il or into operative positioin Said Shelf in toi-ined with an incline or onrn port (i7 adapted to coin the stud upward. il" necessary.

in Fig'. :3 l' have shown a torni oi the presi ent invention rannewhnt diii'erent from that in! the other figures` und nuoro neeriy rr seiniiiinn` the forni shown in niy prior pao ent hereiniietore referred to. in this inl-zn; of the in Vont/ion the screw :iii replaced by two short studs Igli and ilif :ind o lever Bill is piroted by moans ci' trunnions Iii'i between the brnnrfhes of ihe lever iii!! said lover 556i being' n straight lever havin; l its shorter erin iyinf between the two ln'nnohes oi the lever 31%. where a link 'il, is pivoteii thereto nt'ii. The ylever 'lhl hns n notrh orslotli like the notch 3S and it hns nn extension 621 like the extension (in) but .in this instance the extension i391 rests, not on the lixori pin (S3, but on the shift rnil 'i'. in this construction, therefore` the lever liii moyen up und down with the shjtt rnii T and the .'ibrnt`or moves up nnrl down nlso. but to a less extent than the shiiii rnil` lilith this: iornl oi the invention when onooll theI stop` Lil or l2 is in operntion the ribbon hns to nnfkes possible be lifted by the key stroke from e. little Alower initinl position, relatively, when `the parts are in the ripper onse position than when they are in lower croie position, end the ribbon shifts np und down with the pinten when the parte are set :i'or iniineographing, as well ns when they are set lfor printing 'with the ribbon. lt is in this niainiy that the advantnge resides in using the tixed pin ll und shelf (35 because then the ribbon shifts np and down with the platen 'when snid ribbon is being used 'for printing but when the ports are being used for iniincogrnplring the ribbon does not shit't -up :rnd clown. The ineans `whereby this function is brought about, nninely7 that thovibrntor nnd its acoinpanying ports shift np and yclown with the 'platen when the ribbon'is in use for printing;i nn iwlie1i'tl1e parts are not for rniineogrnph work seid vibraton does not nhiljt with thc pinten, is not of my invention but is en improvement added Ato my mechanism by 'others'.

'lhe 'lorni of the invention shown in my prior potent :ind` also the 'forni shown in Fig. 5 oi' the Inesent oase, hns, when applied 'to the .iieinington typewriter the `flisndvnntage that, the short arni of the level: lili being;- eitnated between the bronches of [he lever $32. it is necessary to pnt a rightnngg'lrd henri titi in the link 391 in order to ineke seid link clonr certain ports of the mechanism. The upper port of seid link extends nearly horizontnlly townrdthe front oi the innehine. in order to reach in to the lever lii. lhis forni of the link :interferes `with its rigidity in ordinary use und also innkes'i'tho link linhie to get sprang and thus chungo its eteetive length. ln the form of the invention shown in the other figures of the drawings this disodvnntngo has been ohriatrd by n change in the shape of the lever 2lb, which lever is mede with two ln-anehcs connor-,ted by :i yoke piece 68 which Iies'benmrth one oi' the bronches of the lever 31%. thus ihrowinig the short erin of the lever :3h einer outside oi und at the rein' of the hrnoket All, as r-,ieariv shown in Fig. Li. The pirot 3T consists' ot n pin nnd the severnl parts-:iro eepzrrnted by three sleeves or washers (iii strung along said pin. lt will be pereeived that 'both the levers 32 and 36 are thus proviiiei'i with wide bearings, and the Short nrin oi the lover 36 being thus moved ont toward the rear nlnkes it possible to nso :i straight link Si) instead of one havingY the bend referred to. In my prior patent lV showed n spring' acting on the lever which in that patent corresponded to the lever ll or llil of the present ense. rl`hnt spriupr was not nbsolutely essentiel in the torni oiE the inrention shown in the pnte'nt but it is rerniered niiogei'her unnecessary hv tho chungo just :ibove dosi'rribed which the use oi' the straight link 39, which has enough rigiclity to push parts back to norinal position by 'the ergy of the returning spring 2l or universal bar.

The majority of users oit typewriters have more work to do that involves the use of: the yribbon than they have stencil wor-,rj and ttor this reason the tooth that 'separates the notches 58 and 59 in the bar e3, is marie longer than that between the notches 57( and 58 so that it requires a slight extra eiiort on the linger wheel or lnurlerl head 5l to force the bar i3 into niirneographing position and a. con'iparatively easy eil-fort to shift it baclr and forth between the two printing positions. y

it will of coarse be understood that the setti-ng of the slide i3 'for writing on the upper or lower ifielols of the ribbon is nseiul both-in oase the ribbon has two colors and also in case it is of one color, in the latter instance the change being niacle for the saire of using,` up a greater part of the surface of the ribbon. lit will oi" course also be `understooo` that niore than two stops like the stops el. and e2, can be provided if preferred, so as to use up the surface oit a one color ribbon even niore completely.

Various changes can be made without de" parting' from my' invention.

"W hat l clairn'as new and desire to secure by Letters Patent, is

i. rlfhe combination oit printing lreys, a pair ot levers joined together, means operated by seid keysv for imparting to saiil levers a clelinite elrtent of relative turning movement about their point of juncture5 variable stopping ineens :tor arresting said levers in a definite relative position, a ribbonvibrator operate@ by said levers, an eX- tension on one of said levers, anal e Vnlcruni .for said extension, sairl stopping being capable of an adjustment to an inoperaytive position and said lever .in that case turning about said. fuleruin and causing said vibrator 'to be moved 'away from the printing point. i

2. The combination 'of printing keys, a Heating lever, a ribbon vibrator connected with saicl lever, between the ends oi' the latter, a second lever to which saicl floating vlever is pivoted, and variable stopping parte are oper and `the other away troni printing position,

a ribbon vibrator operatetl y the lirst of said parts, variable stoppin means -for variably distributing the relat motion between the two parte, said stopping means being capable oit being/5 thrown ont ati on, and inea-ns whereby when.

.means are ont et operation said cansetl to inove the 'vibrator Iit no' position a key strolre,

I l i.'nting leysz vibrating; nieans therei'or conlorising l. connected levers, a. stop adapted to be interposed. between saicl levers and to be withcli"L vn :troni between saitl levers, anti an extension on one of saicl levers atlaptetl en sairl stop'is withdrawn to canse said vibrator to rnove awa from the printing point when one oi'l saitl keys is ope itecl..

5. '.lhe combination of' a ribbon vibrator1 a lever having" said vibretor connect tl therewith between the ends oli saicl leverj operating)1 means at one enel of lever, a movable pivot tor saifl lever between saitl operating` ineens and said vibrator, and

means capable of holding saicl pivot against movement or not as clesired, saicl leven when saicl Ypivot is held against movement acting as a lever oi? the .first order to move the ribbon to printing position and when saisi Divot is not held against movement said lever acting as a lever oft the seconfl order to ca ose the ribbon to inove away from the printing position.

G. The combination of ribbon vibrator; two lever, pivoted together scissors fashion, and the first ot' saicl levers connected with sairl vibrator and having aneXtension be vond said vibrator; operating; means coni nectctl with the other enel of said first lever; a pivot ior the seconfl lever; and variable stopping means 'for said seconcl lever.l said stopping; means capable of being thrown into and. out of operation; the construction being;l such that when said stopping; moans are in operation the ribbon is inoverl to printing position and when sairl stopping means are ont of operation the ribbon is inoverl away from printing' position.

Signed at the borough of lilanhattan, in the county of New York, and State of New Yorin, this 9th day of ingust, It. l 1919. 

